Ora-27103 Internal Error Svr4 Error 11 Resource Temporarily Site

oracle soft nproc 65536 oracle hard nproc 65536 Reboot or re-login as oracle. If the instance is misconfigured:

Introduction If you are an Oracle Database Administrator (DBA) working on Unix/Linux-based systems (Solaris, AIX, Linux), you might occasionally encounter the cryptic error: Ora-27103 Internal Error Svr4 Error 11 Resource Temporarily

ALTER SYSTEM SET processes=800 SCOPE=SPFILE; Then restart. Check MyOracleSupport for known bugs matching your version (e.g., Bug 9854529 for Solaris 10). Case Study: A Real-World Example Symptom: After increasing the SGA from 8GB to 16GB, the database failed to start with ORA-27103. oracle soft nproc 65536 oracle hard nproc 65536

ipcs -ls showed SEMMNI=128 . The database’s PROCESSES=1500 . Each Oracle process consumes a semaphore. With multiple instances, 128 semaphore sets were insufficient. 128 semaphore sets were insufficient.